MODELING OF MECHANICAL BEHAVIOR AND DESIGN OF MICROSTRUCTURE ON PARTICULATE REINFORCED MATERIALS
An analytical model based on Eshelby equivalent inclusion approach and Mori-Tanaka mean field extension was established by introducing numerical matrix and composite secant/tangent moduli to simulate the stress-strain curve of paniculate reinforced composite. The same modeling work was also carried out by FEM analysis based on the unit cell model using a commercial ANSYS code. The modeling results by both models on evolution of the load carried by the SiC particles during straining provide strong evidences to back up the strengthening mechanism of the load sharing. The modeling was also carried out to study the influence of different volume fractions and aspect ratios on elastic modulus and yield strength of the composites with different reinforcing particles to get a better understanding of strengthening mechanisms of the materials. A concept of microstructure design for paniculate reinforced materials was argued based on new developments in understanding of the relationship between properties and microstructure. The optimal geometry of paniculate reinforcement was discussed in respect to the best match up with matrix mechanical behavior.
MMC yield phenomena Eshelby approach finite element analysis modeling theory
B.Y.ZONG YAOMIAN WANG JIE LI NA XU
Key Laboratory for Anisotropy Design and Texture Engineering of Materials (Ministry of Education), Northeastern University, Shenyang, 110004, China
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1627-1633
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）